ION Technical Content
GPS in 300 square millimetres
| Abstract: | With GPS a commodity function embedded in systems from fishfinders to phones and wristwatches, space and power are critical. A new 2-chip complete GPS module is described based on on a new ST chipset. The STB5610 RF front end integrates LNA and oscillator. Available in a 5x5mm package, it needs only 12mm x 9mm with RF filter, IF filter and decoupling capacitors. The new GPS microcontroller is based on an ARM processor for maximum compatibility with third party software, and has a myriad of peripherals in addition to the GPS correlators and dsp hardware. With Flash ROM and static RAM on chip, there is no need for an external bus, allowing an 8x8mm BGA package. The peripherals range from CAN for vehicle use through USB for PC connection, to HDLC for European road tolling applications, in addition to serial UARTs and general purpose PIO pins. The entire system can be built in a 25 x 12mm board area (half a square inch), single sided, suitable for embedding on pcb’s for phones or even watches. With a full suite of GPS software drawn from long experience on the ST20GP6/STB5600 chipset, and running on the royalty-free OS20 realtime-kernel, the architecture is fully open to allow the oem to add his own application software, choosing to run GPS or not, and saving one processor and all its interfacing from most applications. One of the widest market uses is expected to be embedded in telematics and fleet-tracking systems, where the GPS processor runs the application that controls a GSM or other wireless modem, while the spread of road tolling in Europe will result in widespread use in private cars. |
| Published in: |
Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001) September 11 - 14, 2001 Salt Palace Convention Center Salt Lake City, UT |
| Pages: | 830 - 834 |
| Cite this article: | Mattos, Philip G., "GPS in 300 square millimetres," Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001), Salt Lake City, UT, September 2001, pp. 830-834. |
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